Nokia Messaging is inbuilt into N900 unlike any other Nokia Phones. You dont need to install it. You jus click on mail icon and then from list of providers you should see nokia messaging. And from there you add whichever accounts u want. I have added gmail and hotmail....and i get mails almost instantly. PS: You need data package for this so when it comes to vodafone u require vmc and it wont work with live !